Method for transmitting radio link failure report, and terminal device and network device

Abstract

A method for sending radio link failure (RLF) report includes: sending a CHO-related RLF report including at least one of: a result of signal measurement performed on a neighbor cell; a result of signal measurement performed on a candidate cell not meeting a handover execution/triggering condition; a list of candidate cells meeting the handover execution/triggering condition; a list of candidate cells not meeting the handover execution/triggering condition; an identifier of a first cell, where the first cell includes a cell where an RRC reconfiguration signaling is received; indication information of a handover execution condition type; a parameter corresponding to a configured handover execution condition; information used for indicating whether RLF occurs in the first cell until the CHO is performed; a length of time from receiving a CHO configuration to triggering the CHO; a handover type identifier.

1 . A method for sending radio link failure (RLF) report, applied to a terminal device, comprising:
 sending an RLF report related to a conditional handover (CHO), wherein the RLF report related to the CHO comprises at least one of following:
 a result of signal measurement performed by the terminal device on a neighbor cell; 
 a result of signal measurement performed by the terminal device on a candidate cell not meeting a handover execution/triggering condition; 
 a list of candidate cells meeting the handover execution/triggering condition; 
 a list of candidate cells not meeting the handover execution/triggering condition; 
 an identifier of a first cell, wherein the first cell comprises a cell where the terminal device receives a radio resource control (RRC) reconfiguration signaling; 
 indication information of a handover execution condition type configured for the terminal device; 
 a parameter corresponding to a configured handover execution condition; 
 information used for indicating whether the terminal device has experienced RLF in the first cell until the CHO is performed; 
 a length of time from receiving a CHO configuration to triggering the CHO; and 
 a handover type identifier. 
   
     
     
         2 . The method as claimed in  claim 1 , wherein,
 the result of signal measurement performed by the terminal device on the neighbor cell comprises at least one of following:
 the result of signal measurement performed by the terminal device on the neighbor cell until the CHO is performed; 
 the result of signal measurement performed by the terminal device on the neighbor cell until a traditional handover is performed; 
 the result of signal measurement performed by the terminal device on the neighbor cell until an RLF is detected; 
 the result of signal measurement performed by the terminal device on the neighbor cell until a handover failure (HOF) is detected; and 
 the result of signal measurement performed by the terminal device on the neighbor cell until a result of signal measurement on at least one candidate cell meets the handover execution/triggering condition; 
   the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition comprises at least one of following:
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the CHO is performed; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the traditional handover is performed; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the RLF is detected; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the HOF is detected; and 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the result of signal measurement on the at least one candidate cell meets the handover execution/triggering condition. 
   
     
     
         3 . The method as claimed in  claim 1 , wherein the result of signal measurement comprises at least one of following:
 reference signal receiving power (RSRP);   reference signal receiving quality (RSRQ); and   signal to interference plus noise ratio (SINR).   
     
     
         4 . The method as claimed in  claim 1 , wherein the parameter comprises at least one of a frequency-specific offset, a cell-specific offset, an additional offset, a hysteresis, or a threshold. 
     
     
         5 . The method as claimed in  claim 1 , wherein the neighbor cell comprises a candidate cell and/or a non-candidate cell. 
     
     
         6 . The method as claimed in  claim 1 , wherein the handover type identifier is used for indicating a handover type is a CHO or an unconditional handover. 
     
     
         7 . The method as claimed in  claim 1 , wherein the result of signal measurement of the terminal device on the neighbor cell comprises a measurement result on at least one neighbor cell, and the measurement result on the neighbor cell comprises at least one of following:
 a result of signal measurement on the neighbor cell;   a cell ID of the neighbor cell; and   indication information of whether the neighbor cell is a candidate cell.   
     
     
         8 .- 42 . (canceled) 
     
     
         43 . A terminal device, comprising a processor, a memory and a transceiver, wherein the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to:
 send, via the transceiver, a radio link failure (RLF) report related to a conditional handover (CHO), wherein the RLF report related to the CHO comprises at least one of following:
 a result of signal measurement performed by the terminal device on a neighbor cell; 
 a result of signal measurement performed by the terminal device on a candidate cell not meeting a handover execution/triggering condition; 
 a list of candidate cells meeting the handover execution/triggering condition; 
 a list of candidate cells not meeting the handover execution/triggering condition; 
 an identifier of a first cell, wherein the first cell comprises a cell where the terminal device receives a radio resource control (RRC) reconfiguration signaling; 
 indication information of a handover execution condition type configured for the terminal device; 
 a parameter corresponding to a configured handover execution condition; 
 information used for indicating whether the terminal device has experienced RLF in the first cell until the CHO is performed; 
 a length of time from receiving a CHO configuration to triggering the CHO; and 
 a handover type identifier. 
   
     
     
         44 . The terminal device as claimed in  claim 43 , wherein,
 the result of signal measurement performed by the terminal device on the neighbor cell comprises at least one of following:
 the result of signal measurement performed by the terminal device on the neighbor cell until the CHO is performed; 
 the result of signal measurement performed by the terminal device on the neighbor cell until a traditional handover is performed; 
 the result of signal measurement performed by the terminal device on the neighbor cell until an RLF is detected; 
 the result of signal measurement performed by the terminal device on the neighbor cell until a handover failure (HOF) is detected; and 
 the result of signal measurement performed by the terminal device on the neighbor cell until a result of signal measurement on at least one candidate cell meets the handover execution/triggering condition; 
   the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition comprises at least one of following:
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the CHO is performed; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the traditional handover is performed; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the RLF is detected; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the HOF is detected; and 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the result of signal measurement on the at least one candidate cell meets the handover execution/triggering condition. 
   
     
     
         45 . The terminal device as claimed in  claim 43 , wherein the result of signal measurement comprises at least one of following:
 reference signal receiving power (RSRP);   reference signal receiving quality (RSRQ); and   signal to interference plus noise ratio (SINR).   
     
     
         46 . The terminal device as claimed in  claim 43 , wherein the parameter comprises at least one of a frequency-specific offset, a cell-specific offset, an additional offset, a hysteresis, or a threshold. 
     
     
         47 . The terminal device as claimed in  claim 43 , wherein the neighbor cell comprises a candidate cell and/or a non-candidate cell. 
     
     
         48 . The terminal device as claimed in  claim 43 , wherein the handover type identifier is used for indicating a handover type is a CHO or an unconditional handover. 
     
     
         49 . The terminal device as claimed in  claim 43 , wherein the result of signal measurement performed by the terminal device on the neighbor cell comprises a measurement result on at least one neighbor cell, and the measurement result on the neighbor cell comprises at least one of following:
 a result of signal measurement on the neighbor cell;   a cell ID of the neighbor cell; and   indication information of whether the neighbor cell is a candidate cell.   
     
     
         50 .- 56 . (canceled) 
     
     
         57 . A network device, comprising a processor, a memory and a transceiver, wherein the memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to:
 receive, via the transceiver, from a terminal device an RLF report related to a conditional handover (CHO), wherein the RLF report related to the CHO comprises at least one of following:
 a result of signal measurement performed by the terminal device on a neighbor cell; 
 a result of signal measurement performed by the terminal device on a candidate cell not meeting a handover execution/triggering condition; 
 a list of candidate cells meeting the handover execution/triggering condition; 
 a list of candidate cells not meeting the handover execution/triggering condition; 
 an identifier of a first cell, wherein the first cell comprises a cell where the terminal device receives a radio resource control (RRC) reconfiguration signaling; 
 indication information of a handover execution condition type configured for the terminal device; 
 a parameter corresponding to a configured handover execution condition; 
 information used for indicating whether the terminal device has experienced RLF in the first cell until the CHO is performed; 
 a length of time from receiving a CHO configuration to triggering the CHO; and 
 a handover type identifier. 
   
     
     
         58 . The network device as claimed in  claim 57 , wherein the processor is further configured to:
 optimize a CHO configuration according to the RLF report related to the CHO.   
     
     
         59 . The network device as claimed in  claim 57 , wherein,
 the result of signal measurement performed by the terminal device on the neighbor cell comprises at least one of following:
 the result of signal measurement performed by the terminal device on the neighbor cell until the CHO is performed; 
 the result of signal measurement performed by the terminal device on the neighbor cell until a traditional handover is performed; 
 the result of signal measurement performed by the terminal device on the neighbor cell until an RLF is detected; 
 the result of signal measurement performed by the terminal device on the neighbor cell until a handover failure (HOF) is detected; and 
 the result of signal measurement performed by the terminal device on the neighbor cell until a result of signal measurement on at least one candidate cell meets the handover execution/triggering condition; 
   the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition comprises at least one of following:
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the CHO is performed; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the traditional handover is performed; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the RLF is detected; 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the HOF is detected; and 
 the result of signal measurement performed by the terminal device on the candidate cell not meeting the handover execution/triggering condition until the result of signal measurement on the at least one candidate cell meets the handover execution/triggering condition. 
   
     
     
         60 . The network device as claimed in  claim 57 , wherein the result of signal measurement comprises at least one of following:
 reference signal receiving power (RSRP);   reference signal receiving quality (RSRQ); and   signal to interference plus noise ratio (SINR).   
     
     
         61 . (canceled) 
     
     
         62 . The network device as claimed in  claim 57 , wherein the neighbor cell comprises a candidate cell and/or a non-candidate cell. 
     
     
         63 . (canceled) 
     
     
         64 . The network device as claimed in  claim 57 , wherein the result of signal measurement performed by the terminal device on the neighbor cell comprises a measurement result on at least one neighbor cell, and the measurement result on the neighbor cell comprises at least one of following:
 a result of signal measurement on the neighbor cell;   a cell ID of the neighbor cell; and   indication information of whether the neighbor cell is a candidate cell.   
     
     
         65 .- 94 . (canceled)